Filaria immitis in Calcutta 
B y S. N. MITTER, G. B. V. C., 
In the Revue Vétérinaire of February of 1911, there appeared 
a paper by Prof. L.-G. Neumann, of the National Veterinary 
School of Toulouse, in which he publishes bis researches on the 
subject of Verminous dermatoses of dog based on the literature 
available in the different continental and Indian Journals. While 
reviewing my paper on Cutaneous Filariasis in a dog, which 
was çommunicated to the Journal of Tropical Veterinary Science , 
(vol. V, part. III), Professor Neumann observes as follows. 
« Mitter’ s observation (Calcutta)— 
A drop of blood from the intact pustules showed numerous 
filarial embryos, similar ones being obtained from the blood of 
the auricular vein. They were about 460 [j. long while those of 
Filaria immitis are only 285-295, and Lewis were still shorter. 
Local combined with general treatment was successful. The Fila¬ 
ria immitis lias not been recorded from Calcutta ». 
Thus it will be seen from Prof. Neumann’ s remarks that no case 
of Filaria immitis has even been recorded from Calcutta. I confess 
that I hesitated to publish my observation on tliis particular form 
of Filariasis which came under my notice during last ten years I 
hâve been associated with this Research Laboratory and the Pa- 
thological Muséum connected with it, on the considération that 
F. immitis are fairly common not only in Calcutta but also in 
Lower Bengal and that the subject will not create an interest 
among the Profession. However I recorded mv observation in 
the Index-Catalogue of parasites of animais also in the descrip¬ 
tive catalogue of Pathological specimens in the Muséum of the 
Bengal Veterinary College both of which I prepared about two 
years ago. 
I believe that Filaria immitis is also common in Burma where 
it has been studied by Lt. Col. Evans and Mr. Rennie, and 
their observations were published in the Journal of Tropical Vete¬ 
rinary Science (vol. V, part. II). 
The object of this paper is to place on record four cases of 
Filaria immitis which came under my notice recently. 
